How Does Miracle-Gro Work?

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How Does Miracle-Gro Work?
Miracle-Gro provides nutrients. (green spray bottle image by Jim Mills from

Miracle-Gro provides minerals and nutrients to a plant's roots. Miracle-Gro is a simple way to maintain healthy home garden plants, but it is dangerous if over-applied.

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Miracle-Gro is made up of mostly nitrogen, ammonium and minerals which provide a rich base for plant growth. The iron, copper, manganese, molybdenum, and boron in Miracle-Gro are soil supplements which plants uptake through foraging roots.


Miracle-Gro can be applied onto top soil and watered or directly mixed into a plant's soil for quick absorption. The nutrients and chemicals are synthesised by plant roots so the fertiliser must reach the bottom of the root structure.


Miracle-Gro works to provide plants the nutrition they need to grow healthy without much soil preparation. Miracle-Gro can be added after transplanting, so no initial soil work is needed for plant health.

Organic Miracle-Gro

Miracle-Gro also has an organic fertiliser line which works for plant growth by providing slow-released nutrients to plants. Organic Miracle-Gro does not use harmful chemicals and still fertilises plants effectively.

Expert Insight

Miracle-Gro must be carefully applied to avoid burning the roots. The acidity of Miracle-Gro can easily cause harm if applied too often or in too large a dose.

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